 /*******************************************************************************
  * Copyright (c) 2006 IBM Corporation and others.
  * All rights reserved. This program and the accompanying materials
  * are made available under the terms of the Eclipse Public License v1.0
  * which accompanies this distribution, and is available at
  * http://www.eclipse.org/legal/epl-v10.html
  *
  * Contributors:
  * IBM Corporation - initial API and implementation
  *******************************************************************************/
 package org.eclipse.osgi.internal.module;

 import java.util.ArrayList ;
 import org.eclipse.osgi.service.resolver.VersionConstraint;

 public class GenericConstraint extends ResolverConstraint {
     private ArrayList matchingCapability;

     GenericConstraint(ResolverBundle bundle, VersionConstraint constraint) {
         super(bundle, constraint);
     }

     boolean isOptional() {
         return false;
     }

     boolean isSatisfiedBy(VersionSupplier vs) {
         return getVersionConstraint().isSatisfiedBy(vs.getBaseDescription());
     }

     public void setMatchingCapability(GenericCapability capability) {
         if (capability == null) {
             matchingCapability = null;
             return;
         }
         if (matchingCapability == null)
             matchingCapability = new ArrayList (1);
         matchingCapability.add(capability);
     }

     public GenericCapability[] getMatchingCapabilities() {
         return matchingCapability == null || matchingCapability.size() == 0 ? null : (GenericCapability[]) matchingCapability.toArray(new GenericCapability[matchingCapability.size()]);
     }

     void removeMatchingCapability(GenericCapability capability) {
         if (matchingCapability != null)
             matchingCapability.remove(capability);
     }
 }

